AS6VB51216
&
ꢀꢁꢂꢁꢇꢁꢄ ꢆ
Read waveform 2 (CS1, CS2, OE, UB, LB controlled)
[WE=High]
t
RC
Address
t
AA
OE
t
OE
t
t
OH
OLZ
CS1
t
OHZ
t
ACS
CS2
t
t
HZ
LZ
LB, UB
t
t
BA
BHZ
t
BLZ
D
Data valid
OUT
ꢈꢈ
Write cycle (over the operating range)
–55
–70
–85
Parameter
Symbol
Min
55
45
45
0
Max
–
Min
Max
–
Min
85
60
60
0
Max
–
Unit
ns
Notes
12
Write cycle time
tWC
tCW
tAW
tAS
70
60
60
0
Chip enable to write end
Address setup to write end
Address setup time
–
–
–
ns
–
–
–
ns
–
–
–
ns
ns
12
Write pulse width
tWP
tAH
tDW
tDH
tWZ
tOW
tBW
40
0
–
50
0
–
50
0
–
Address hold from end of write
Data valid to write end
Data hold time
–
–
–
ns
ns
25
0
–
30
0
–
30
0
–
–
–
–
ns
ns
ns
ns
4, 5
4, 5
4, 5
Write enable to output in high Z
Output active from write end
UB/LB low to end of write
0
20
–
0
20
–
0
20
–
5
5
5
45
–
60
–
60
–
1/21/02; V.0.9.6
Alliance Semiconductor
P. 5 of 10
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
